A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community Evolution
The issue of environmental pollution caused by wastewater discharge from fruit juice production has attracted increasing attention. However, the cost-effectiveness of conventional treatment technology remains insufficient. In this study, a gravity-driven membrane bioreactor (GDMBR) was developed to...
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2024-12-01
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| author | Dan Song Haiyao Du Shichun Chen Xiaodie Han Lu Wang Yonggang Li Caihong Liu Wenjuan Zhang Jun Ma |
| author_facet | Dan Song Haiyao Du Shichun Chen Xiaodie Han Lu Wang Yonggang Li Caihong Liu Wenjuan Zhang Jun Ma |
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| description | The issue of environmental pollution caused by wastewater discharge from fruit juice production has attracted increasing attention. However, the cost-effectiveness of conventional treatment technology remains insufficient. In this study, a gravity-driven membrane bioreactor (GDMBR) was developed to treat real fruit juice wastewater from secondary sedimentation at pressures ranging from 0.01 to 0.04 MPa without requiring backwashing or chemical cleaning, with the aim of investigating flux development and contaminant removal under low-energy conditions. The results demonstrate an initial decrease in flux followed by stabilization during long-term filtration. Moreover, the stabilized flux level achieved with the GDMBR at pressures of 0.01 and 0.02 MPa was observed to surpass that obtained at 0.04 MPa, ranging from 4 to 4.5 L/m<sup>−2</sup> h<sup>−1</sup>. The stability of flux was positively associated with the low membrane fouling resistance observed in the GDMBR system. Additionally, the GDMBR system provided remarkable efficiencies in removing the chemical oxygen demand (COD), biological oxygen demand (BOD), ammonia (NH<sub>4</sub><sup>+</sup>-N), and total nitrogen (TN), with average removal rates of 82%, 80%, 83%, and 79%, respectively. The high biological activity and microbial community diversity within the sludge and biofilm are expected to enhance its biodegradation potential, thereby contributing to the efficient removal of contaminants. Notably, a portion of total phosphorus (TP) can be effectively retained in the reactor, which highlighted the promising application of the GDMBR process for actual fruit juice wastewater based on these findings. |
| format | Article |
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| institution | Kabale University |
| issn | 2077-0375 |
| language | English |
| publishDate | 2024-12-01 |
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| series | Membranes |
| spelling | doaj-art-8eef80137d2f45c7abd345ffcd6f76312024-12-27T14:39:21ZengMDPI AGMembranes2077-03752024-12-01141226010.3390/membranes14120260A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community EvolutionDan Song0Haiyao Du1Shichun Chen2Xiaodie Han3Lu Wang4Yonggang Li5Caihong Liu6Wenjuan Zhang7Jun Ma8School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, ChinaSchool of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, ChinaPetroChina Harbin Petrochemical Company, Harbin 150056, ChinaSchool of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, ChinaSchool of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, ChinaGuangxi Key Laboratory of Urban Water Environment, Baise University, Baise 533000, ChinaKey Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing 400044, ChinaTianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, ChinaSchool of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai 264209, ChinaThe issue of environmental pollution caused by wastewater discharge from fruit juice production has attracted increasing attention. However, the cost-effectiveness of conventional treatment technology remains insufficient. In this study, a gravity-driven membrane bioreactor (GDMBR) was developed to treat real fruit juice wastewater from secondary sedimentation at pressures ranging from 0.01 to 0.04 MPa without requiring backwashing or chemical cleaning, with the aim of investigating flux development and contaminant removal under low-energy conditions. The results demonstrate an initial decrease in flux followed by stabilization during long-term filtration. Moreover, the stabilized flux level achieved with the GDMBR at pressures of 0.01 and 0.02 MPa was observed to surpass that obtained at 0.04 MPa, ranging from 4 to 4.5 L/m<sup>−2</sup> h<sup>−1</sup>. The stability of flux was positively associated with the low membrane fouling resistance observed in the GDMBR system. Additionally, the GDMBR system provided remarkable efficiencies in removing the chemical oxygen demand (COD), biological oxygen demand (BOD), ammonia (NH<sub>4</sub><sup>+</sup>-N), and total nitrogen (TN), with average removal rates of 82%, 80%, 83%, and 79%, respectively. The high biological activity and microbial community diversity within the sludge and biofilm are expected to enhance its biodegradation potential, thereby contributing to the efficient removal of contaminants. Notably, a portion of total phosphorus (TP) can be effectively retained in the reactor, which highlighted the promising application of the GDMBR process for actual fruit juice wastewater based on these findings.https://www.mdpi.com/2077-0375/14/12/260gravity-driven membrane bioreactor (GDMBR)fruit juice wastewater treatmentsludge characteristicsbiofilmmicrobial community |
| spellingShingle | Dan Song Haiyao Du Shichun Chen Xiaodie Han Lu Wang Yonggang Li Caihong Liu Wenjuan Zhang Jun Ma A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community Evolution Membranes gravity-driven membrane bioreactor (GDMBR) fruit juice wastewater treatment sludge characteristics biofilm microbial community |
| title | A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community Evolution |
| title_full | A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community Evolution |
| title_fullStr | A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community Evolution |
| title_full_unstemmed | A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community Evolution |
| title_short | A Gravity-Driven Membrane Bioreactor in Treating Real Fruit Juice Wastewater: Response Relationship Between Filtration Behavior and Microbial Community Evolution |
| title_sort | gravity driven membrane bioreactor in treating real fruit juice wastewater response relationship between filtration behavior and microbial community evolution |
| topic | gravity-driven membrane bioreactor (GDMBR) fruit juice wastewater treatment sludge characteristics biofilm microbial community |
| url | https://www.mdpi.com/2077-0375/14/12/260 |
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